The Super Hydrodyne, an improved towboat design that resulted from an extensive $500,000 research and development program, was unveiled recently by St. Louis Ship, a division of Pott Industries Inc., St. Louis, Mo.
The Super Hydrodyne, claimed to be more energy efficient and maneuverable than existing models, is already in service on inland waterways, following two years of development.
The design changes incorporated in the Super Hydrodyne have a performance improvement of 4.9 percent, the company reports, yielding a return on investment of 47 percent compared to the original design of the equipment.
Three 6,000-hp towboats are currently in service. The first two, M/V Paulina, and M/V Altonian (shown above), were delivered to the Peavey Company, and the third, the M/V Beth Armstrong, went to H & S Transportation Co., Inc. Several new Super Hydrodyne towboats make up St.
Louis Ship's backlog, ranging in horsepower from 4,500 to 9,000 and consisting of twin- and triplescrew designs.
The original Hydrodyne hull design was introduced in 1959, following an extensive model test program conducted at the Maritime Research Institute in the Netherlands (MARIN), formerly known as the Netherland Ship Model Basin.
Hydrodyne was the name selected to describe the hull shape optimized for push towing service on Western rivers. The design included appendages specifically designed to perform in the restricted channel environment utilizing high horsepower installations.
In most design applications, the hulls were fitted with Kort nozzles integrated into the tunnel stern. The Hydrodyne is designed to operate as an open propeller design as well. During the next two decades, additional model tests were completed at MARIN, resulting in continued refinements to the Hydrodyne.
Seventy-two Hydrodynes have been delivered and are still operating.
In the early fall of 1979, meetings were held at St. Louis Ship on whether the Hydrodyne could be further improved by incorporating a more efficient design.
Several weeks were spent planning and preparing a test program.
During February 1980, St.
Louis Ship representatives visited MARIN and established a model test program designed to investigate the optimum propeller diameter.
nozzle length, and nozzle profile. Strut design, steering rudder, and flanking rudder designs with the latest Hydrodyne concepts were used.
A nominal 3,000-hp per shaft was selected as the basic design requirement and models of twinscrew towboats were manufac- Qn a one-of-a-kind boat.
The Portland. Tlx only u'orking steam-powered stemwlxel tugboat in the u'orld After years of faithful sen'ice in Portland Harbor, we're retiring this historic i 'esse/ from her commercial duties Marking the end of an era. Marking a new beginning.
The Port of Portland has begun a search for companies that would be interested in comerting and operating this classic ship as a tour boat in tlx Portland Harbor on a lease basis.
For more infonnation, contact David N. Neset, Director, Marine Sen ices. (503) 231-5000 It's a rare opportunity.
Don't miss The Boat.
$ Port of Portland P.O. Box3529, Portland, Oregon 97208 tured for the tests. Beginning in April, overload tests were conducted behind a barge fleet representing 25 loaded jumbo barges and an eight-barge integrated unit tow in MARIN's shallow water basin.
Test data was collected for performance comparisons ahead, astern, steering, and flanking in different water depths with two different towboat lengths operating behind the two barge fleets.
Using the optimum propulsion system, the steering rudder and flanking rudder designs were further tested and refined for maximum operating efficiency.
After two and one-half months of testing for design optimization in the shallow water basin, another test program was prepared for the large cavitation tunnel at MARIN to test the optimum towboat model and appendage combination obtained from the shallow water basin tests. These tests were to insure a propeller design as free of cavitation as possible.
The tests resulted in changes to the strut design.
The following weeks were spent reviewing test results and comparing manufacturing costs versus performance gains. St. Louis officials contacted many barge line operating managers for their opinions of the relative importance of the various operating conditions that had been tested. Utilizing the operator requirements and information from model tests, the design was selected to give the optimum in push, steering, and flanking, and which also yields the best return on investment for the operator.
Waterways Operators, Inc. The towboat was designed and built by the St. Louis Ship, Division of Pott Industries Inc., and features their exclusive Hydrodyne Hull. The Donnelly is the third St. Louis Ship towboat in the Ingram fleet. Edward Renshaw, president of St. Louis Ship, served as master of
new 9,000- bhp towboat, the John M. Donnelly. Designed and built by St. Louis Ship, Division of Pott Industries, the vessel features the exclusive Hydrodyne hull, and is the third towboat in the Ingram fleet built by St. Louis Ship. The Donnelly's hull measures 200 feet by 50 feet by 11 feet 6 inches
water heaters. Deck equipment includes a Schoellhorn-Albrecht capstan and four Patterson winches. Air compressors are by Quincy. The St. Louis Ship "Hydrodyne" hull of the Justin T. Rogers has an overall length of 187 feet, a beam of 47.8 feet, and a depth of 12 feet. Operating draft is just over 9
, designed and built for Mobil Oil Company by the St. Louis Ship Division of Pott Industries Inc., features the St. Louis Ship exclusive Super Hydrodyne hull. The new vessel, which replaced the Mobil La- Crosse built by St. Louis Ship in 1951, will operate out of Mobil's Joliet, 111. refinery
largest commercial towboat operating on the Mississippi River system. This 10,500 hp, triple screw fiYDHanvwE measures 200 by 54 by 12 feet. The Hydrodyne name identifies St. Louis Ship's exclusive combina- tion of hull lines, nozzle and propeller design, rudder configuration and steering system
, Inc. "We consider speed, efficiency and maneuverability of extreme importance," continued Mr, Geary. "That's why we specified a St. Louis Ship Hydrodyne towboat, with plenty of horsepower. Our new boat is a sister ship to the M/V Yeager and M/V Taft, but it incorporates latest design improvements
Third of the latest series of Hydrodyne Hull towboats, built for Upper Mississippi Towing Corporation, is the new M/V Henry B. Like its two recent predecessors, the M/V Steve T, and the M/V Gale C, the Henry B is a big (200 feet), powerful (8400 hp) and finely appointed towboat, a good example
good handler, with great visibility, too. We have a fleet of 12 owned and chartered towboats to push our 245 barges. I never drove one of these Hydrodynes before believe this is the best boat we have in the . Our Chief Engineer says it's the best built he ever saw. M/G is really pleased with
new super towboat to its fleet. The M/V J.S. McDermott is shown pushing a large tow on the lower Mississippi. The McDermott is one of the largest Hydrodyne towboats ever built by St. Louis Ship, as well as the largest and most powerful towboat in Federal's fleet. Federal Barge pioneered the concept
to make, so we took a look at everything available. St. Louis Ship was selected due to the overall quality and performance of their Hydrodyne Hull. As far as I'm concerned, they're definitely the best on the river." That's what Floyd Goodman, Peavey's Director of Towboat Operations
to make, so we took a look at everything available. St. Louis Ship was selected due to the overall quality and performance of their Hydrodyne Hull. As far as I'm concerned, they're definitely the best on the river." That's what Floyd Goodman, Peavey's Director of Towboat Operations
to make, so we took a look at everything available. St. Louis Ship was selected due to the overall quality and performance of their Hydrodyne Hull. As far as I'm concerned, they're definitely the best on the river." That's what Floyd Goodman, Peavey's Director of Towboat Operations
new super towboat to its fleet. The M/V J.S. McDermott is shown pushing a large tow on the lower Mississippi. The McDermott is one of the largest Hydrodyne towboats ever built by St. Louis Ship, as well as the largest and most powerful towboat in Federal's fleet. Federal Barge pioneered the concept
to make, so we took a look at everything available. St. Louis Ship was selected due to the overall quality and performance of their Hydrodyne Hull. As far as I'm concerned, they're definitely the best on the river." That's what Floyd Goodman, Peavey's Director of Towboat Operations
good handler, with great visibility, too. We have a fleet of 12 owned and chartered towboats to push our 245 barges. I never drove one of these Hydrodynes before is is the best boat we have in the fleet. Our Chief Engineer says it's the best built boat he ever saw. M/G is really pleased with
9,000- bhp towboat, the John M. Don- nelly. Designed and built by St. Louis Ship, Division of Pott In- dustries, the vessel features the exclusive Hydrodyne hull, and is the third towboat in the Ingram fleet built by St. Louis Ship. The Donnelly's hull measures 200 feet by 50 feet by 11 feet 6
M/V John M. Donnelly is the largest of Ingram Barge Company's fleet of 18 towboats. Named after the company's President, this triple screw, Hydrodyne, is now the Flagship of Ingram's Fleet. It was tailored to perform specific operations re- quired by Ingram with great power and reli- ability
Twenty Eighth Towboat for Midland "28/68" is a successful combination. For Midland Enterprises, Inc., the 6000 HP Hydrodyne towboat M/V Midland marks the 28th towboat purchased from St. Louis Ship. It also marks the 68th ftYDRODYNE towboat built by St. Louis Ship since introduction
M/V John M. Donnelly is the largest of Ingram Barge Company's fleet of 18 towboats. Named after the company's President, this triple screw, Hydrodyne, is now the Flagship of Ingram's Fleet. It was tailored to perform specific operations re- quired by Ingram with great power and reli- ability
New Towboat Design At St. Louis Ship Results From Two-Year Research Program The Super Hydrodyne, an im- proved towboat design that re- sulted from an extensive $500,000 research and development pro- gram, was unveiled recently by St. Louis Ship, a division of Pott Industries Inc., St. Louis, Mo.
. Deck equipment includes a Schoellhorn-Albrecht capstan and four Patterson winches. Air com- pressors are by Quincy. The St. Louis Ship "Hydrodyne" hull of the Justin T. Rogers has an overall length of 187 feet, a beam (continued on page 38) 12 Circle 109 on Reader Service Card Maritime
known for pioneering shallow draft marine technology, the company has been the leader in design improvements for river towboats and barges. The Hydrodyne Hull, introduced in 1963, has been continuously improved through the years to attain the optimum in fuel efficiency. Today, St. Louis Ship maintains
but not; duplicates The new 7500 H.P. M/V Gale C. is the second Hydrodyne towboat built for Upper Mississippi Towing Corporation by St. Louis Ship, in the past 2 years. The Gale C. and its predecessor, the Leslie Ann, are twins but not duplicates. Their crisp lines and quality appearance are the
Tribute to a grand lady When Sam Goldstein, President of Apex Oil Company of St. Louis, Missouri, ordered their new Hydrodyne towboat from St. Louis Ship, he wanted it to be something special. Before the boat was designed, Sam had already selected the name Gloria G, as a tribute to his wife
But all the facts led to (HVDnaDYNE When we asked Mr. Drennan why he selected St. Louis Ship... he replied simply: "I wanted quality. I specified Hydrodyne." The 7000 HP, twin screw M/V Robert Crown was the result. After a new series of tests performed at the Netherlands Model Basin, the exclusive
but not duplicates The new 7500 H.P. M/V Gale C. is the second Hydrodyne towboat built for Upper Mississippi Towing Corporation by St. Louis Ship, in the past 2 years. The Gale C. and its predecessor, the Leslie Ann, are twins but not duplicates. Their crisp lines and quality appearance are the
Yeager 23 Coming M/V ROBERT A. TAFT 21 ST ST. LOUIS SHIP TOWBOAT FOR THE OHIO RIVER COMPANY The 6650 HP M/V Robert A. Taft is the latest Hydrodyne Hull towboat added to the Ohio River Company's fleet. The Robert A. Taft is a sister ship of the M/V B. John Yeager. Both boats feature the
Feyereisen, daughter of the Chapmans, and Mrs. Gale H. Chapman Jr. The Gale C. is the 218th towboat built at St. Louis Ship. The hull is a hydrodyne, the 39th delivered since this St. Louis Ship concept of hull configuration was extensive- ly tested and proved to provide greater thrust